| 摘要 |
PURPOSE:To obtain good-quality citrine without containing bread crumblike inclusion, by adding potassium dichromate to an aqueous solution of potassium carbonate, etc., as a solvent in synthesizing citrine (yellow quartz). CONSTITUTION:One or two or more selected from potassium carbonate, alkali metal nitrites, etc., in the form of an aqueous solution are used as a solvent and iron hydroxide is used as a colorant to synthesize citrine by a hydrothermal synthesis method. In the process, potassium dichromate is added to the solvent.
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